217558620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:480

約数の個数: 144

約数和(自身を含む): 688816128

約数和(自身を除く): 471257508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 127, 155, 180, 186, 254, 279, 307, 310, 372, 381, 465, 508, 558, 614, 620, 635, 762, 921, 930, 1116, 1143, 1228, 1270, 1395, 1524, 1535, 1842, 1860, 1905, 2286, 2540, 2763, 2790, 3070, 3684, 3810, 3937, 4572, 4605, 5526, 5580, 5715, 6140, 7620, 7874, 9210, 9517, 11052, 11430, 11811, 13815, 15748, 18420, 19034, 19685, 22860, 23622, 27630, 28551, 35433, 38068, 38989, 39370, 47244, 47585, 55260, 57102, 59055, 70866, 77978, 78740, 85653, 95170, 114204, 116967, 118110, 141732, 142755, 155956, 171306, 177165, 190340, 194945, 233934, 236220, 285510, 342612, 350901, 354330, 389890, 428265, 467868, 571020, 584835, 701802, 708660, 779780, 856530, 1169670, 1208659, 1403604, 1713060, 1754505, 2339340, 2417318, 3509010, 3625977, 4834636, 6043295, 7018020, 7251954, 10877931, 12086590, 14503908, 18129885, 21755862, 24173180, 36259770, 43511724, 54389655, 72519540, 108779310, 217558620]

約数ペア:

[(1, 217558620), (2, 108779310), (3, 72519540), (4, 54389655), (5, 43511724), (6, 36259770), (9, 24173180), (10, 21755862), (12, 18129885), (15, 14503908), (18, 12086590), (20, 10877931), (30, 7251954), (31, 7018020), (36, 6043295), (45, 4834636), (60, 3625977), (62, 3509010), (90, 2417318), (93, 2339340), (124, 1754505), (127, 1713060), (155, 1403604), (180, 1208659), (186, 1169670), (254, 856530), (279, 779780), (307, 708660), (310, 701802), (372, 584835), (381, 571020), (465, 467868), (508, 428265), (558, 389890), (614, 354330), (620, 350901), (635, 342612), (762, 285510), (921, 236220), (930, 233934), (1116, 194945), (1143, 190340), (1228, 177165), (1270, 171306), (1395, 155956), (1524, 142755), (1535, 141732), (1842, 118110), (1860, 116967), (1905, 114204), (2286, 95170), (2540, 85653), (2763, 78740), (2790, 77978), (3070, 70866), (3684, 59055), (3810, 57102), (3937, 55260), (4572, 47585), (4605, 47244), (5526, 39370), (5580, 38989), (5715, 38068), (6140, 35433), (7620, 28551), (7874, 27630), (9210, 23622), (9517, 22860), (11052, 19685), (11430, 19034), (11811, 18420), (13815, 15748)]